Helium-3 production from Pb+Pb collisions at SPS energies with the UrQMD model and the traditional coalescence afterburner

被引：3

作者：

Qing Feng Li ^{[1
]}

Yong Jia Wang ^{[1
]}

Xiao Bao Wang ^{[1
]}

Cai Wan Shen ^{[1
]}

机构：

[1] School of Science, Huzhou University

来源：

Science China(Physics,Mechanics & Astronomy) | 2016年 / Mechanics & Astronomy)2016卷 / 03期

基金：

中国国家自然科学基金;

关键词：

rapidity distribution of Helium-3; Ur QMD model; coalescence model; Lorentz transformation;

D O I：

暂无

中图分类号：

O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

A potential version of the UrQMD（UrQMD/M） transport model and a traditional coalescence model are combined to calculate the production of;He fragments in central Pb+Pb collisions at SPS energies 20-80 Ge V/nucleon. It is found that the Lorentz transformation in the afterburner influences visibly the;He yield and should be considered in calculations. The rapidity distribution of;He multiplicities（including the concave shape） can be described well with Ur QMD/M when it stops during t;ut=（100±25） fm/c and the coalescence afterburner with one parameter set of（R;,P;）=（3.8 fm, 0.3 Ge V/c） is taken into use afterwards.

引用

页码：63 / 66

页数：4